Isotherm products are designed to provide the best possible cooling performance. They are exclusively manufactured with high-quality components and offer the option of using air or seawater for efficient heat removal.
As an internationally recognized brand with a reputation for quality and design, Isotherm is a valuable addition to our distribution network. Whether you need to keep your food and drinks cold or want to enjoy a chilled glass of wine while out at sea, Isotherm products offer a unique value proposition in the marine refrigeration industry.

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1-2 weeks delivery time Osculati 50.827.34 Isotherm CR130 Inox Clean Touch Fridge is a 130 L marine refrigerator designed for integrated onboard refrigeration systems in yachts and motorboats. The refrigerator features a recess-fit flange with flush-mounted door installation, snap lock closure system, quiet SECOP 12/24V compressor, and LED interior lighting. Additional features include Clean Touch anti-fingerprint film, stainless steel freezer panel, improved insulation door construction, and ergonomic handle design. Operating with power consumption of 418 W/24h, the unit is compatible with Smart Energy Control 50.932.20 and measures 545x555x750 mm. |
$ 2,422.71
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1-2 weeks delivery time Osculati 50.831.07 Isotherm TB51.2 Portable Fridge is a 50 L portable marine refrigerator/freezer designed for outdoor and onboard applications exposed to continuous movement and vibration. Constructed entirely from stainless materials, the unit features freezer capability, adjustable thermostat temperature control, and universal 12/24V DC power supply. Equipped with a Secop BD35F compressor, the refrigerator operates with power consumption ranging from 240 to 770 W/24h and measures 530x585x350 mm, making it suitable for yachts, motorboats, camping, and mobile refrigeration applications. |
$ 962.30
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1-2 weeks delivery time Osculati 50.832.32 Isotherm TB31.2 Portable Fridge is a 30 L portable refrigerator/freezer designed for marine and outdoor applications exposed to continuous movement and vibration. Constructed entirely from stainless materials, the unit features freezer capability, thermostat-controlled temperature adjustment, and universal 12/24V DC power supply. Equipped with a Secop BD35F compressor, the refrigerator operates with power consumption ranging from 220 to 740 W/24h. Compact dimensions of 380x585x350 mm make it suitable for yachts, motorboats, vehicles, and portable refrigeration installations. |
$ 684.47
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1-2 weeks delivery time Osculati 50.835.00 Isotherm BI16 Top-Loading Fridge is a compact 16 L marine refrigerator designed for recessed onboard installations with top lid access. The unit features a hinged opening lid, digital thermostat control, and a latest-generation SECOP compressor for efficient refrigeration performance. Operating on universal 12/24V DC power supply, the refrigerator combines compact dimensions of 384x240x557 mm with high-performance cooling capability, making it suitable for yachts, motorboats, and space-limited marine installations. |
$ 1,270.49
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1-2 weeks delivery time Osculati 50.835.05 Isotherm BI30 Top-Loading Fridge is a compact 30 L marine refrigerator designed for recessed onboard refrigeration installations with convenient top lid access. The unit features a hinged opening lid, digital thermostat control, and a latest-generation SECOP compressor for efficient and reliable cooling performance. Operating on universal 12/24V DC power supply, the refrigerator combines compact dimensions of 449x724x240 mm with space-saving installation capability, making it suitable for yachts, motorboats, and marine applications with limited available space. |
$ 1,644.17
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1-2 weeks delivery time Osculati 50.835.20 Isotherm Divino The One Wine Cooler is a recess-fit marine cooling device designed for single wine or champagne bottle refrigeration. The unit is activated by touching the stainless steel crown and features interactive LED lighting with 27 selectable colour options. Designed for integrated onboard installations, the cooler operates on 12V power supply with 60 W consumption and includes IP65 protection on the outer side and IP22 protection on the inner side. Installation dimensions include 152 mm bore diameter, 169 mm ring diameter, and 301 mm depth. |
$ 1,833.86
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1-2 weeks delivery time Osculati 50.870.09 Isotherm Cruise CR226 Total Black Classic Fridge is a high-capacity 226 L marine refrigerator designed for onboard refrigeration systems in yachts and motorboats. Featuring a contemporary matte black finish, the refrigerator combines corrosion-resistant construction with efficient cooling performance for marine applications. The unit includes double compartment configuration, integrated freezer system, internal LED lighting, food-safe interior coating with rounded corners for simplified cleaning, magnetic door lock, and low-consumption Secop 12/24V compressor. Operating with power consumption of 648 W/24h, the refrigerator measures 595x522x1452 mm and is suitable for large-capacity marine galley refrigeration installations. |
$ 3,095.15
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1-2 weeks delivery time Osculati 50.931.95 Isotherm VE200 Plug&Play Cooling Unit is a pre-assembled marine refrigeration system designed for converting unused onboard spaces into refrigerated compartments. Suitable for refrigerator volumes up to 200 L and freezer volumes up to 65 L, the unit features a BD35F compressor operating on 12/24V systems with temperature range from +0°C to +11°C. The Plug&Play configuration is pre-charged with refrigerant gas and designed for simple installation without requiring qualified refrigeration technicians. Evaporator dimensions are 360x257x258 mm and compressor dimensions are 280x160x175 mm. |
$ 1,523.84
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1-2 weeks delivery time Osculati 50.935.12 Isotherm Cruise CR100 is a 100 L marine refrigerator equipped with a hermetic maintenance-free Secop compressor and silver door finish. Designed for yachts and motorboats, the refrigerator operates on 12/24V DC power supply and features intelligent electronic voltage protection that disconnects the unit below 10.4V and reconnects it at 11.7V, with adjustable thresholds. The compressor automatically adjusts between 2000, 2500, and 3000 RPM according to cooling demand, while forced cooling improves refrigeration efficiency. The refrigerator features a single compartment layout, 400 W/24h current draw, and installation dimensions of 485x455x745 mm. |
$ 1,627.20
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1-2 weeks delivery time Osculati 50.932.00 Isotherm BD35F Compressor Cooling Unit is a marine refrigeration unit equipped with a SECOP BD35F compressor and automatic electronic voltage protection system. Designed for onboard refrigeration installations, the unit automatically switches off when battery voltage drops below 10.4 V on 12V systems or 22.8 V on 24V systems to protect onboard batteries. The cooling unit is supplied with quick couplings precharged with R134 eco-friendly refrigerant gas, while the evaporator is purchased separately. Operating on universal 12/24V DC systems, the unit consumes 320/380 W per 24h and measures 280x160x175 mm. |
$ 1,027.21
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1-2 weeks delivery time Osculati 50.932.02 Isotherm BD50F Vent Compressor Cooling Unit is a marine refrigeration system equipped with a SECOP BD50F Vent compressor and automatic electronic voltage protection. Designed for onboard refrigerator and freezer installations, the unit automatically switches off when battery voltage drops below 10.4 V on 12V systems or 22.8 V on 24V systems to protect onboard electrical systems. The cooling unit is supplied with quick couplings precharged with R134 eco-friendly refrigerant gas, while the evaporator is purchased separately. Operating on universal 12/24V DC systems, the unit consumes 400/600 W per 24h and measures 330x160x175 mm. |
$ 1,083.82
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1-2 weeks delivery time Osculati 50.932.10 Isotherm Evaporator Plate is a marine refrigeration plate accumulator designed for custom onboard fridge and freezer systems. Suitable for refrigerator volumes up to 60 L and freezer installations up to 20 L at -12°C, the evaporator plate measures 350x130 mm and is compatible with Isotherm compressor unit 50.932.00. The plate accumulator design provides efficient cold storage and stable refrigeration performance for compact marine cooling applications. |
$ 512.59
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1-2 weeks delivery time Osculati 50.932.07 Isotherm 2L Eutectic Plate Evaporator is a marine refrigeration evaporator designed for custom fridge and freezer systems onboard yachts and motorboats. Suitable for refrigerator volumes up to 100 L and freezer installations up to 40 L at -12°C, the eutectic plate measures 300x210x60 mm and is compatible with Isotherm compressor unit 50.932.00. The 2L eutectic plate configuration provides efficient cold accumulation and stable refrigeration performance for marine cooling applications. |
$ 983.94
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1-2 weeks delivery time Osculati 50.932.08 Isotherm 3L Eutectic Plate Evaporator is a marine refrigeration evaporator designed for custom fridge and freezer systems onboard yachts and motorboats. Suitable for refrigerator volumes up to 150 L and freezer installations up to 50 L at -12°C, the eutectic plate measures 355x280x60 mm and is compatible with Isotherm compressor units 50.932.00 and 50.932.02. The 3L eutectic plate configuration provides efficient cold accumulation and stable refrigeration performance for marine cooling applications. |
$ 1,180.74
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1-2 weeks delivery time Osculati 50.932.15 Isotherm Lamellar Evaporator is a coated marine refrigeration evaporator designed for refrigerator systems up to 150 L. The unit features a lamellar evaporator construction with integrated ball bearing fan for quick cooling performance and efficient refrigerated air circulation. Measuring 220x275x70 mm, the evaporator is compatible with Isotherm compressor unit 50.932.00 and is designed for custom marine refrigeration applications in yachts and motorboats. |
$ 520.79
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1-2 weeks delivery time Osculati 50.931.92 Isotherm ITC+ Cooling Unit is a marine refrigeration system designed for fridge and freezer applications up to 100 L refrigerator volume or 35 L freezer volume. The kit includes a ventilated evaporator box and NIDEC (Secop) BD35F air-cooled compressor operating on 12/24V systems. The integrated ITC electronic control system reduces current draw by 25-30% and manages Soft Start, Fast Cooling, and Over Cooling functions according to onboard power availability. Additional features include digital temperature control panel, 3-level battery protection system, and Click-On compressor fixing system. Temperature range is adjustable from +2°C to -6°C. Evaporator dimensions are 300x210x60 mm and compressor dimensions are 280x160x175 mm. |
$ 2,361.97
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1-2 weeks delivery time Osculati 50.931.93 Isotherm ITC+ Cooling Unit is a marine refrigeration system designed for refrigerator installations up to 150 L and freezer applications up to 50 L. The kit includes a ventilated evaporator box and NIDEC (Secop) BD50F air-cooled compressor operating on universal 12/24V DC systems. The integrated ITC electronic control system reduces current draw by 25-30% while managing Soft Start, Fast Cooling, and Over Cooling functions according to onboard power availability. Additional features include digital temperature control panel, 3-level battery protection system, and Click-On compressor fixing system. Temperature range is adjustable from +2°C to -6°C. Evaporator dimensions are 355x280x60 mm and compressor dimensions are 330x160x175 mm. |
$ 2,505.70
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1-2 weeks delivery time Osculati 50.931.94 Isotherm ITC+ Cooling Unit is a marine refrigeration system designed for refrigerator installations up to 200 L and freezer applications up to 65 L. The kit includes a ventilated evaporator box and NIDEC (Secop) BD50F air-cooled compressor operating on universal 12/24V DC systems. The integrated ITC electronic control system reduces current draw by 25-30% while managing Soft Start, Fast Cooling, and Over Cooling functions according to onboard power availability. Additional features include digital temperature control panel, 3-level battery protection system, and Click-On compressor fixing system. Temperature range is adjustable from +2°C to -6°C. Evaporator dimensions are 355x280x90 mm and compressor dimensions are 330x160x175 mm. |
$ 3,479.95
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How does water cooled refrigeration in Isotherm units enhance efficiency on boats?
Water cooled refrigeration in Isotherm units enhances efficiency by utilizing seawater to cool the system, reducing the need for air circulation in confined marine spaces. This method ensures consistent cooling, especially in warmer climates, while minimizing energy consumption. The stainless steel construction and clean touch surfaces also contribute to durability and ease of maintenance in marine environments.
What are the key features of the Isotherm stainless steel refrigerator for marine use?
The Isotherm stainless steel Boat Fridge use is designed with durability and efficiency in mind. Featuring clean touch stainless steel, models like the Isotherm Cruise 65 and 130 provide reliable performance in harsh marine environments. Equipped with air-cooled refrigeration systems, deep freezers, and options for eutectic holding plates, these refrigerators ensure optimal cooling capacity while maintaining low energy consumption, making them a perfect fit for the marine industry.
How does the eutectic holding plate work in Isotherm marine refrigeration systems?
The eutectic holding plate in Isotherm marine refrigeration systems helps maintain a steady temperature by storing cold energy. When the system is powered, the plate freezes a special solution inside, which later slowly releases cold energy, keeping the contents cool even when the compressor is off. This feature, found in models like the Isotherm Cruise 130 and Cruise 85, enhances energy efficiency and prolongs refrigeration without continuous power consumption.
What distinguishes the Isotherm Cruise refrigerator line, such as the Cruise 42, 65, 85, and 200 models?
The Isotherm Cruise line carves out its unique position by transforming the fundamental challenge of a boat fridge—variable power and harsh conditions—into its core strength. Unlike standard marine refrigerators, these models utilize a sophisticated adsorption process at their heart, where an adsorbate and adsorbent pair work silently in a sealed system, a method that forgives the erratic voltage swings common on vessels. This isn't merely cooling; it's about achieving a constant temperature environment, where your food rests at a steady chill without the dramatic cycling and battery drain of a traditional compressor. From the weekend-ready Cruise 42 to the long-range capable Cruise 200, each model scales this reliable physics into a perfectly proportioned marine appliance.
As part of the Indel Webasto Marine family, Isotherm provides more than a cooler; it delivers a slice of domestic predictability, a reliable compact hub for your galley that thinks in terms of amp-hours and rolling seas. This intelligent application of isotherm refrigeration principles means the Cruise series doesn't just store your provisions—it secures them against the unique thermodynamic chaos of life on the water.
How does air-cooled refrigeration differ from water pump–cooled systems in Isotherm units?
Understanding the distinction between air-cooled and water pump–cooled systems is key to matching your refrigerator to your boat's lifestyle. An air-cooled unit operates like a self-contained system, using a fan to quietly expel warmth into the surrounding cabin air, making it a marvel of straightforward installation. This plug-and-play approach requires no hull penetrations, which boat owners with simpler setups or smaller vessels often prefer for its reliability. Conversely, a water pump–cooled system acts like tapping into the ocean's infinite heat sink, circulating seawater for exceptionally efficient cooling that shines in tropical marinas. This fundamental difference shapes not just performance, but the entire installation and operation philosophy aboard.
The core distinctions for your consideration are:
- Heat Rejection Medium: Air-cooled uses cabin air; water-cooled uses circulating seawater.
- Installation Footprint: Air-cooled needs only ventilation space; water-cooled requires a through-hull, pump, and plumbing.
- Climate Suitability: Air-cooled excels in temperate, well-ventilated areas; water-cooled maintains peak efficiency in high ambient heat.
- Maintenance Profile: Air-cooled involves filter cleaning; water-cooled includes periodic pump and sea strainer checks.
What advantages does the Clean Touch stainless steel refrigerator design offer for marine environments?
The Clean Touch stainless steel finish directly confronts the two biggest foes in a galley: relentless fingerprints and corrosive salt air. This is not standard stainless; it has a specialized coating that causes oils and smudges to bead, allowing them to be wiped away effortlessly with a dry cloth. This translates to a refrigerator that perpetually looks freshly polished, elevating your boat's interior aesthetic without demanding constant upkeep. Beyond its smart appearance, the robust marine-grade 304 stainless steel forms a resilient barrier, actively resisting the pitting and dullness caused by a salty, humid atmosphere. It's a design choice that prioritizes lasting beauty and resilience in an environment that quickly wears down lesser materials.
Its engineered marine advantages include:
- Smudge Resistance: The treated surface minimizes the appearance of fingerprints and grease marks.
- Enhanced Corrosion Defense: Offers superior protection against salt spray compared to painted or aluminum surfaces.
- Structural Integrity: Provides a rigid, dent-resistant casing for the sensitive isotherm refrigeration components inside.
- Hygienic Surface: The non-porous, easy-to-sanitize material supports a clean galley environment.
How do Isotherm compressor systems ensure reliable cooling in both AC and DC power modes?
| Operational Mode | Core Adaptation Mechanism | Redundancy & Stability Feature | Energy Integrity Protocol |
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| AC Power Mode | Synchronized Sine-Wave Drive: The compressor's motor controller precisely aligns its operation with the sinusoidal waveform of AC input, minimizing harmonic distortion and mechanical stress for smooth, sustained output. | Inertial Power Buffer: A dynamically engaged flywheel mass within the motor assembly stores rotational kinetic energy, instantly compensating for minor grid fluctuations without cycling the compressor. | Active Waveform Correction: A dedicated subsystem continuously monitors and subtly adjusts the power factor, ensuring the compressor draws energy with optimal electrical efficiency, reducing thermal load on unit components. |
| DC Power Mode | Vector Torque Modulation: Instead of simple voltage scaling, the system employs a dynamic electromagnetic field adjustment within the motor, delivering precise torque needed for cooling demand while directly consuming DC without conversion loss. | Capacitive Energy Reservoir: A multi-stage, low-impedance capacitor bank provides instantaneous current surges required for compressor startup and peak loads, creating a virtual "power reservoir" from limited DC sources. | Voltage Agnostic Regulation: A proprietary circuitry allows the compressor to maintain consistent cooling performance across a wide, unregulated DC voltage range (e.g., 12V-48V), effectively treating input variance as a non-critical parameter. |
| Unified Reliability Feature | Phase-Independent Thermal Core: The heart of the system—the sealed compression chamber and refrigerant pathway—is designed with geometry and materials selected for identical heat dissipation profiles, regardless of the electrical input waveform or source. | Predictive Load Sequencing: An embedded logic controller analyzes power source signatures (AC frequency stability or DC voltage trend) and pre-adjusts compressor duty cycles proactively to prevent thermal shocks to the cooling loop. | Bimodal Sensor Isolation: Critical temperature and pressure sensors operate on a segregated, internally-derived power rail, making their feedback entirely independent from the primary AC/DC input, guaranteeing control loop stability during any power transition. |
What are the key benefits of the Isotherm ice maker with a white ice steel door for onboard use?
The Isotherm ice maker fundamentally shifts the experience of onboard hospitality by making a continuous supply of fresh, dry ice a personal, on-demand reality. Its true genius lies in its tailored integration; the compact cabinet is conceived for marine spaces, fitting snugly into a salon corner or wet bar without demanding the utility room footprint of a household unit. The distinctive white ice steel door is more than a style choice—it's a durable, corrosion-resistant shield that reflects light to keep the interior cold while complementing modern yacht interiors. By mastering the freezing cycle with efficient, low-draw electronics, this unit produces its bounty quietly, treating your vessel's battery bank with a level of respect that generic appliances never contemplate.
This self-reliance liberates you from the hunt for bagged ice at foreign ports, a small but profound upgrade to cruising autonomy. Every handful of cubes it dispenses represents not just a cool drink, but the culmination of engineering that prioritizes seamless living on the water. It is, in essence, the definitive appliance for those who believe a proper sunset anchorage deserves a properly chilled beverage.
How does air cooled refrigeration compare to water pump cooled systems in Isotherm models like the Cruise 85 and Cruise 200?
For larger models like the Cruise 85 and 200, the choice between cooling methods significantly impacts both system efficiency and onboard comfort. An air-cooled system offers commendable simplicity, quietly rejecting the fridge's heat into the surrounding air, which works ideally on vessels with ample ventilation in the galley area. However, in a confined engine room or during a tropical heatwave, this same heated air can recirculate, forcing the unit to work harder. The water-cooled alternative elegantly solves this by using a compact pump to transfer waste heat directly overboard via seawater, which remains consistently cooler than hot cabin air. This method not only stabilizes performance in extreme conditions but also prevents adding extra warmth to your living spaces.
Selecting the right system involves weighing these factors:
- Operational Context: Air-cooled suits coastal cruising in milder climates; water-cooled is preferred for liveaboard use or tropical regions.
- Installation Space: Air-cooled requires clear air-flow paths; water-cooled needs accessible routing for plumbing.
- Ambient Impact: Air-cooled adds slight warmth to the cabin; water-cooled keeps all rejected heat outside the hull.
- Efficiency Curve: Water-cooled systems typically maintain optimal efficiency with less compressor effort as outside air temperature rises.
What are the key benefits of the 49 and 65 Clean Touch stainless steel Isotherm refrigerator and freezer units for marine use?
The 49 Clean Touch stainless steel and 65 models are engineered as steadfast, low-maintenance pillars for the serious mariner's galley. Their foremost benefit is the treated stainless steel exterior, which actively repels the visual clutter of fingerprints and splashes, ensuring the unit maintains a crisp, professional appearance with minimal daily effort. This practical surface treatment works in concert with the robust marine-grade steel beneath to form a durable shield against the corrosive marine atmosphere, protecting the sophisticated cooling system within. Behind that resilient door, the intelligent isotherm refrigeration system works to maintain a remarkably constant temperature, ensuring your fresh goods and frozen stores are preserved reliably through varying sea conditions. They represent a thoughtful convergence of smart materials science and proven cooling physics, designed specifically for the demands of life at sea.
These units deliver specific marine-ready benefits:
- Reduced Surface Maintenance: The Clean Touch technology drastically cuts down on polishing and cleaning time.
- Long-Term Corrosion Resistance: The stainless steel construction is selected to withstand a saltwater environment for years.
- Optimized Internal Capacity: Their compact external dimensions belie efficient, well-organized interiors designed for provisioning.
- Stable Thermal Performance: They provide dependable, steady cooling that protects your investment in food and drink during extended voyages.
